My sisters Lexus IS 300 Sportcross (wagon). It has the inline 6 Toyota engine. 70% city, 30% hwy in Miami, FL. I am pretty sure I used M1 SS (not EP) for this sample. I refilled with 5.6 quarts of M1 10W-30 EP. I also drained out 3 qts of trans fluid and refilled with T-IV as well as drained out...